Drilling riser buoyancy module



FIG. 1 is a perspective view of a drilling riser buoyancy module showing our new design thereof;

FIG. 2 is a top view of the drilling riser buoyancy module shown in FIG. 1;

FIG. 3 is a front view of the drilling riser buoyancy module shown in FIG. 1;

FIG. 4 is a back side view of the drilling riser buoyancy module shown in FIG. 1;

FIG. 5 is a bottom view of the drilling riser buoyancy module shown in FIG. 1;

FIG. 6 is a side view of the drilling riser buoyancy module shown in FIG. 1; and,

FIG. 7 is a cross view of the drilling riser buoyancy module shown in FIG. 1. 

CLAIM The ornamental design for a drilling riser buoyancy module, as shown and described. 